#top{
    width: 780px;
    height: 183px;
    float: left;
    background-color: white;
}
#banner{
    width: 780px;
    height: 150px;
    background: url(../img/banner.jpg);
}
#nav li{
    width: 78px;
    height: 33px;
    text-align: center;
    line-height: 33px;
    background: url(../img/button1.jpg);
    float: left;
}
#nav li:hover{
    background-image: url(../img/button1_bg.jpg);
    position: relative;
    bottom: 1px;
    right: 1px ;
}
#nav a{
	text-decoration:underline;
	color: #004A87F;
}